MORTAR, PLASTER OR FIREPROOFING MIXER GRID GUARDS

Amend Section 1698(e) as follows:

§1698.Concrete and
Masonry Equipment.

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(e)Mortar, Plaster
or Fireproofing Mixers.

(1)One year
after the effective date of this regulation, gGrid guards on mortar,
plaster or fireproofing mixers of 1 yard capacity ofr smaller
shall have a grid opening not to exceed 4 inches square16
square inches with a minimum clearance of 5 inches from the top of the grid
guard to the top of the mixing paddles.

(2)All mortar, plaster
or fireproofing mixers of 1 yard capacity or smaller ordered or purchased after
the effective date of this regulation shall be equipped with grid guards with
an opening not to exceed 4 inches square16 square inches with a
minimum clearance of 5 inches from the top of the grid guard to the top of the
mixing paddles.